vs
Opensense
01Alternative to Opensense

Looking for an
Opensense alternative?

Signivo manages email signatures centrally for whole organisations within Google Workspace and Outlook. Two minutes to set up, EU-hosted, flat €1 per user per month.

Signivo is the EU-hosted alternative to Opensense, with no minimum spend: flat €1 per user per month, two-minute setup, hosting in Frankfurt only. Opensense is a US-based enterprise ABM-banner platform with a monthly minimum spend and US-default hosting. Here is how the two compare in 2026.

Last updated:
June 1, 2026
·
5 min read

14-day trial · No credit card · EU-hosted · No Workspace changes during trial

02At a glance

The 30-second comparison

Five dimensions that matter most when picking between the two. Pricing and setup time are the biggest gaps.

Signivo
Starting price
€1 / user / month
Setup time
2 minutes
Hosting
EU only (Frankfurt, Germany)
Platform
Google Workspace + Outlook
Best for
SMBs · up to a few hundred users
Opensense
Starting price
$1 / user / month (+ $350/mo minimum)
Setup time
15 minutes (M365 Integrated App)
Hosting
US-based by default, EU/APAC residency available on request
Platform
Microsoft 365, Office 365, Google Workspace, Exchange
Best for
Mid-market and enterprise
03See it in action

Setup in real time

Two minutes is what it takes — start to finished, screen-recorded, no edits.

2 min walkthrough
04
Who we are

Who is ?

Signivo is a centralized email signature manager built for teams using Google Workspace and Outlook. One account connects your entire directory — names, titles, departments, photos, the lot — and publishes consistent, on-brand signatures across your organization. There's one plan with all features included. Our servers are hosted entirely in Frankfurt, Germany.

Built in 2026 by a small team that had spent years frustrated with the choice in this category: enterprise platforms with month-long rollouts on one end, hobby tools with no governance on the other. Signivo is the missing middle — fast enough to deploy within an hour, structured enough to run an organization on. No forced sales process, no implementation package required — start self-serve and involve IT only where it makes sense. Support goes straight to the product team — response within one business day.

05Who they are

Who is Opensense?

Opensense was founded in 2013 in San Francisco as SenderGen, rebranded to Opensense in May 2018.

The product positions for marketing and IT teams at scale: banner A/B testing, CRM-driven ABM targeting, compliance with CAN-SPAM, GDPR, CASL and CCPA, and SOC 2 Type II audited operations. Trade-offs: the $350/month minimum excludes small teams, a service plan is required on top of every per-user tier, and the deepest features (CRM integrations, recipient-based targeting) sit in the highest plan tier.

Opensense is a San Francisco-headquartered, enterprise-grade signature, banner-marketing and compliance platform with deep CRM integration and a $350/month entry minimum. Signivo is the Google Workspace-first option with flat-rate pricing, EU-only Frankfurt hosting and a two-minute setup. Pick Opensense for ABM-driven enterprise marketing on Microsoft 365. Pick Signivo for Google Workspace teams that want EU residency and predictable per-user pricing.

06Side by side

Detailed comparison

Six dimensions, zero hand-waving. Who excels at what.

Pricing

Verdict: Signivo is a flat per-user rate with no minimum. Opensense uses three tiers ($1, $3, $5) with a $350/month minimum on the entry Signature plan.

Signivo: One flat per-user rate, all features, no minimum spend. 1 EUR per user per month, or 10 EUR per user per year when billed annually.

Opensense: Three tiers (Signature, Pipeline, Complete) starting at $1, $3, and $5 per user per month respectively, all with a $350/month minimum plus required service plan. Banner scheduling and targeting sit in Pipeline; CRM integrations and advanced ABM targeting sit in Complete. Microsoft 365 GCC High adds a $2 per-user surcharge.

Competitor pricing is linked rather than quoted - figures change regularly.

Setup & onboarding

Verdict: Signivo deploys in two minutes via Google Workspace OAuth. Opensense deploys in 15 minutes via the Microsoft 365 Integrated App.

Signivo: Two-minute Google Workspace OAuth. Opensense: Deploys via the Microsoft 365 Integrated App, which IT pushes from the M365 admin portal with no mail routing, DNS or SPF changes. Most IT teams complete deployment in under 15 minutes; Google Workspace deploys via Google Directory sync.

Features

Verdict: Signivo focuses on signatures and per-group templates. Opensense adds ABM banners, A/B testing, email engagement tracking and compliance.

A like-for-like view of the capabilities Microsoft 365 marketing teams compare in 2026.

Capability Signivo Opensense
Central signature templates
Directory-driven field population
Setup in 2 minutes
Per-department / per-group templates
Self-serve setup, no sales call required
Direct access to the product team
Legal disclaimers
Flat rate - all features in one plan
HTML-exportable templates
EU-only hosting, no replication outside EU
CRM-driven ABM banner targeting and A/B testing
Microsoft 365 GCC High support
SOC 2 Type II audited annually, dedicated US CSMs

Integrations

Verdict: Signivo integrates natively with Google Workspace and Microsoft 365. Opensense integrates with M365, Google Workspace, HubSpot, Salesforce, Marketo and more.

Signivo: Native Google Workspace and Microsoft 365 via the Signivo Outlook Add-in. Opensense: Deep integration with Microsoft Entra ID, Exchange Online, Google Directory, Salesforce, HubSpot, Marketo, Pardot, Eloqua, Microsoft Dynamics and SIEM tools like Splunk and Datadog.

Support

Verdict: Signivo offers direct product-team access. Opensense gives US-based phone and email support with dedicated CSMs and an included design service covering 5 templates per year.

Signivo: Direct access to the product team, no tier gates. Opensense: Dedicated US-based phone and email support, named Customer Success Managers, plus an included custom design service that covers up to 5 signature templates per year.

Security & compliance

Verdict: Signivo hosts EU-only in Frankfurt by default. Opensense hosts in the US by default and supports EU residency on request.

Signivo: EU-only Frankfurt hosting, no replication, GDPR by default. Certified for Google CASA and Microsoft 365 App Compliance programs.

Opensense: Hybrid cloud built on AWS, Google Cloud, Microsoft Azure and bare-metal SOC 2 Type II data centers. US data centers by default with optional EU, Asia and Australia residency. Emails are processed only in volatile memory. SOC 2 Type II audited annually, with Microsoft 365 GCC High support.

07The honest recommendation

When to choose which

Not every company is a Signivo company, and that's fine. Here's the clearest way we can put it.

Choose Signivo if

  • You want signatures live within minutes, not hours or days
  • Self-service, no onboarding, sales process, or implementation required
  • You're on Google Workspace, Microsoft 365 and want one tool that handles signatures whichever you use
  • You want a flat rate for the entire software; no tiered pricing, no per-seat upsells, or annoying sales reps calling you
  • EU-only hosting and zero replication outside the EU matter for your data residency posture
  • You'd rather contact the people building the product directly than navigate a support tier system

Choose Opensense if

  • You are a 100+ employee Microsoft 365 or Google Workspace marketing team
  • You need CRM-driven ABM banners across HubSpot, Marketo or Salesforce
  • You want SOC 2 Type II, McAfee Enterprise-Ready and Microsoft 365 GCC High support
  • You require US-based phone and email support with dedicated CSMs
  • You want a 15-minute Microsoft 365 Integrated App deployment
  • You need compliance with CAN-SPAM, GDPR, CASL and CCPA in one place
08Switching over

Migrating from Opensense to Signivo

Three steps, a couple of minutes. No consultants, no migration fees.

1

Export your Opensense templates and banner schedule

Ask your Opensense CSM for an HTML export of every active signature template and a CSV of your current banner schedule (campaign, dates, target segment, CTR). Re-create the static templates in Signivo first, then re-create the banner rotation.

2

Connect Signivo

One-time OAuth with your Google Workspace or Microsoft 365 admin. Directory syncs automatically. About two minutes, start to finish.

3

Publish to your team

Upload your templates, or pick from our library, and publish company-wide in one click. Older signatures are overwritten.

09Questions we hear a lot

Frequently asked

What does the switch from another provider look like?
Can I trial Signivo while my current provider is still running?
Will employees need to install or learn anything?
Which providers does Signivo work with?
What happens after the 14-day trial?
Where is my data hosted and is Signivo GDPR compliant?
What happens when I cancel?
10Also comparing

Ready never having to deal with signatures again?

Setup in 2 minutes - and if you still need convincing: scroll this page again.